CVE-2023-31997

UniFi OS 3.1 introduces a misconfiguration on consoles running UniFi Network that allows users on a local network to access MongoDB. Applicable Cloud Keys that are both (1) running UniFi OS 3.1 and (2) hosting the UniFi Network application. "Applicable Cloud Keys" include the following: Cloud Key Gen2 and Cloud Key Gen2 Plus.

Published: 2023-07-01 Last update: 2024-11-26 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-31997 is rated Moderate Risk (40.7/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.22%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-31997

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.04% 0.22% +0.19%
2 2025-11-21 0.07% 0.04% -0.04%
3 2025-11-18 — 0.07% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-31997

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.0 3.1 CRITICAL
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.3 6.0 [email protected]

Weakness enumeration for CVE-2023-31997

Affected software / configurations for CVE-2023-31997

Vendor Product Version Raw CPE
ui unifi_os 3.1 cpe:2.3:o:ui:unifi_os:3.1:*:*:*:*:*:*:*

References for CVE-2023-31997

cvelogic Threat Intelligence